My friend Nina’s twin girls arrived today — two little girls with full heads of black hair, who came out squalling and who each bit the doctor! Nina is my dear friend, the one I called when that assistant coroner was sitting in his truck in front of my house a year ago, waiting to see if I had someone who would come. Nina came, and she cooked pot roast for days and took care of me and everyone else who gathered in my kitchen that week. Nina’s last pregnancy ended in stillbirth, so this one has been fraught. We’ve…